Ice hockey helmet with multi-directional synchronous adjustment

Abstract

Disclosed in the present invention is an ice hockey helmet with multi-directional synchronous adjustment. The ice hockey helmet comprises a helmet shell, wherein a rear shell groove extends backwards from the top of the helmet shell; a rear shell member capable of moving forward and backward relative to the helmet shell is provided in the rear shell groove; connection wings respectively extend obliquely on the left and right sides of the rear shell member; an expansion sliding groove is provided along the outer side wall of each connection wing; guide blocks that can be slidably embedded into corresponding expansion sliding grooves are provided on the helmet shell; first adjustment members are respectively provided on the portions of the helmet shell corresponding to the connection wings; and a second adjustment member is provided at the top of the helmet shell. The present invention aims to provide an ice hockey helmet with multi-directional synchronous adjustment, wherein when a wearer needs to adjust the size of the helmet, the wearer can respectively rotate a first twist wrench and a second twist wrench with both hands, to control the rear shell member to move forward and backward relative to the helmet shell. Also, in cooperation with elastic compression deformation of the expansion sliding grooves and the guide blocks, the wearing space of the helmet is adjusted more easily, and the helmet can better fit the head shapes of different players.

Description

Multi-directional synchronized adjustment ice hockey helmet TECHNICAL FIELD

[0001] The present invention relates to the field of ice hockey helmets, and in particular to a multi-directional synchronized adjustment ice hockey helmet. BACKGROUND

[0002] Ice hockey is a fast-paced, physically demanding sport, and as such, it is also a dangerous one. In such an environment, head protection is of paramount importance. For ice hockey players, concussions are one of the biggest threats. Therefore, it is crucial to choose the right helmet, which will provide effective protection for the head and prevent head injuries. A helmet that is not the right size will not only fail to provide adequate protection, but it can even be more dangerous than not wearing a helmet at all. A helmet that is too small will put pressure on the head when blood flow to the head increases after warming up, causing head pain and discomfort, and in severe cases, it can even cause nausea and fainting. A helmet that is too large will not only obstruct the player's vision, but it can also be unstable during intense activity, deviating or sliding abnormally, and not only will it fail to provide effective protection, the edges of the helmet and face shield and the retaining straps can also cause serious injuries to the neck and collarbone, especially for young people and children.

[0003] Some of the existing ice hockey helmets have a re-adjustment function that allows the helmet to better fit the player's head shape and minimize the risk of injury. The commercially available helmets of this type generally have a front and rear shell part that can be moved relative to each other to adjust the fit. For example: US20160235151A1 discloses an adjustable helmet for a hockey or lacrosse player, the helmet comprising: a) a front shell part; b) a rear shell part, the front and rear shell parts being movable relative to each other to adjust the fit of the helmet on the player's head; c) an adjustment mechanism comprising: i) an actuator configured as a single-finger operated control for adjusting the position of the front shell part relative to the rear shell part, the actuator comprising a plurality of teeth; ii) a plurality of rows of apertures configured to receive the teeth of the actuator, the plurality of rows of apertures being associated with the front shell part and extending into the rear shell part, the plurality of rows of apertures moving relative to the rear shell part as the front shell part moves relative to the rear shell part, whereby the apertures of the plurality of rows of apertures define a plurality of adjustment positions between the front and rear shell parts; iii) the actuator being rotatably movable between a locked position in which the teeth are in contact with at least one aperture in each row of apertures and a released position in which the teeth clear all of the apertures of the plurality of rows of apertures; iv) the rear shell part having an outer side and an opposite inner side, the adjustable helmet comprising a base facing the inner side of the rear shell part, the plurality of rows of apertures being located between the second shell part and the base; v) the base remaining stationary relative to the rear shell part as the front and rear shell parts move relative to each other; vi) the plurality of rows of apertures sliding relative to the base as the front shell part and the rear shell part move relative to each other; vii) the rear shell part comprising a plurality of apertures for receiving the teeth of the actuator when the actuator is in the locked position; viii) the base comprising a plurality of apertures aligned with the apertures on the rear shell part; ix) the teeth of the actuator being configured to be in contact with the apertures of the base in the locked position; x) the teeth of the actuator clearing the apertures of the base in the released position; d) the helmet comprising a pair of raised portions on an outer surface extending in spaced relation at a top and a rear of the helmet, the actuator being located between the raised portions. This solution operates the actuator located in the raised portion at the top of the helmet by a finger, the actuator controls the teeth to insert into the apertures to achieve different adjustment positions, thereby changing the position of the front shell part relative to the rear shell part, to adjust the size of the front and rear length of the wearing space inside the helmet.For example, Canadian publication No. CA2942637A1 discloses a helmet for protecting a wearer's head, the helmet comprising: a) a shell comprising a first shell part and a second shell part movable relative to each other in a longitudinal direction of the helmet to adjust a fit of the helmet on the wearer's head; b) an adjustment mechanism configured to control movement of the first shell part and the second shell part relative to each other, the adjustment mechanism comprising an actuator movable between a first position in which the first shell part and the second shell part are allowed to move relative to each other and a second position in which the first shell part and the second shell part are prevented from moving relative to each other, the actuator being configured to lock a position of the first shell part and the second shell part relative to each other without passing through one of the first shell part and the second shell part. This solution also comprises a first shell part and a second shell part movable relative to each other to adjust a fit in a lengthwise direction of the helmet. The difference is that this solution provides one adjustment mechanism (corresponding to the actuator of the previous solution) on each of the left and right sides of the helmet to allow or prevent the first shell part and the second shell part from moving relative to each other.

[0004] Both of the above-mentioned patent documents disclose a design that can adjust the length of the helmet. Although this design reduces the space inside the helmet to some extent, considering that the head circumference of people of different ages varies not only in length but also in width on the left and right sides, the current market helmets that can only adjust in the length direction are not suitable for all users. Wearing such a helmet cannot avoid the abnormal deviation or sliding of the helmet on the left and right sides, and cannot provide effective protection for the head.

[0005] In addition, the existing helmet needs to be adjusted by first pulling the head to the maximum length with force, and then wearing the helmet. Then, the user needs to squeeze the front and rear parts of the helmet to the center with force by himself or others to obtain a suitable wearing space. This adjustment method is not only laborious but also inconvenient, because during the force adjustment, the head may be clamped, resulting in the need to take off the helmet again for adjustment. This process is almost impossible for children with less strength. SUMMARY

[0006] The purpose of the present application is to provide a multi-directional synchronous adjustment ice hockey helmet that can complete the adjustment of the front and rear parts of the helmet by rotating the adjustment member, and automatically contract or expand the width of the left and right sides of the helmet during the adjustment process. Even without taking off the helmet, the adjustment operation can still be easily and labor-savingly completed.

[0007] In order to achieve the above object, the application adopts the following scheme: a multi-directional synchronous adjusting ice hockey helmet, comprising a helmet shell, a rear shell groove extending from the top of the helmet shell to the bottom of the helmet shell, a rear shell member movably arranged in the rear shell groove and capable of moving forward and backward relative to the helmet shell, a connecting wing extending obliquely to the left and right sides of the helmet shell respectively at the left and right sides of the rear shell member close to the bottom end, an outer surface of the connecting wing movably abutting against the inner walls of the left and right sides of the helmet shell, an expansion sliding groove horizontally arranged on the outer wall of the connecting wing, a guide block slidably embedded in the corresponding expansion sliding groove on the left and right sides of the helmet shell, a first adjusting member arranged on the corresponding helmet shell of the connecting wing and capable of controlling the abutment of the connecting wing against the helmet shell by rotating to move forward and backward, and a second adjusting member arranged on the top of the helmet shell and capable of controlling the movement of the top of the rear shell member relative to the helmet shell by rotating to move forward and backward.

[0008] As a further aspect of the application, the first adjusting member comprises a first slot horizontally penetrating through the two connecting wings respectively, a first rotating shaft hole penetrating through the helmet shell at the position corresponding to the first slot respectively, a first rotating shaft rotatably arranged in the first rotating shaft hole respectively, a first fixed rack arranged in the first slot along the length direction of the top of the first slot respectively, a first drive gear movably sleeved on the end of the first rotating shaft penetrating into the first slot and capable of engaging with the corresponding first fixed rack above, a first clamping member fixedly arranged on the first rotating shaft and capable of moving axially with the first rotating shaft and then being separated from or clamped together with the first drive gear, a first embedding groove recessed on the outer wall of the helmet shell around the first rotating shaft hole and in the form of a strip, and a first rotating wrench hingedly connected to the outer end of the first rotating shaft and capable of being embedded into the first embedding groove by being flipped up, wherein synchronous rotation of the first rotating shaft with the first drive gear can be driven by rotating the first rotating wrench after flipping it up from the first embedding groove, and a first compression spring sleeved on the first rotating shaft is arranged between the first clamping member and the inner wall of the helmet shell, and a first reset locking device is arranged on the two connecting wings respectively and capable of resetting the first rotating wrench to be embedded into the first embedding groove again after being rotated.

[0009] As a further aspect of the present application, the first reset locking device comprises at least one first locking rack movably accommodated in the first slot, a plurality of first guide rails are arranged on the inner wall of the bottom of the first slot, the first locking rack is clamped on the first guide rails and can move along the width direction of the first slot to engage or disengage with the bottom end of the first drive gear, a first swing plate capable of driving the first locking rack is hinged to the inner wall of the connecting wing above the first slot, a first connecting slot is arranged on one side of the first locking rack, the bottom of the first swing plate is hinged to the first connecting slot through the first hinge arm extending transversely, a first displacement slot is arranged on the first swing plate along the length direction of the first slot, the end of the first rotating shaft pointing to the inner side points to the first displacement slot, and a first extension rod capable of penetrating the first displacement slot is connected to the end of the first rotating shaft, a pulling member is rotatably sleeved on the first extension rod, one end of the pulling member movably abuts against the inner wall of the first swing plate, and a first torsional spring capable of maintaining the turning force of the first swing plate against the first drive gear is sleeved on the rotating shaft of the first swing plate.

[0010] As a further aspect of the present application, a connecting ring is connected to the side wall surface of the first drive gear facing the inner wall of the helmet shell, the first clamping member comprises a clamping ring fixedly surrounding the outer wall of the first rotating shaft, a clamping slot penetrating the circumference of the connecting ring is arranged in the same number as the teeth of the first drive gear, and a plurality of clamping teeth capable of being inserted into the clamping slot are arranged on the side wall surface of the clamping ring facing the connecting ring.

[0011] As a preferred aspect of the present application, a first sliding groove parallel to the first displacement slot is arranged on the inner wall of the first swing plate, the pulling member comprises a first rotating ring rotatably sleeved on the first extension rod, a first abutting rod in the shape of "L" is connected to the outer wall of the first rotating ring, and one end of the first abutting rod is inserted into the first sliding groove and can move along the first sliding groove.

[0012] As a preferred aspect of the present application, a first clamping hole is arranged in the first embedding slot, and a first elastic clamping device capable of being clamped into the first clamping hole after the first rotating wrench is turned to be embedded in the first embedding slot is arranged on the first rotating wrench.

[0013] As a further aspect of the present application, the first elastic buckle device comprises a sliding cavity provided in the first screw wrench, one end of the sliding cavity penetrating through the tail end of the first screw wrench, a buckle plate movably inserted in the sliding cavity, one end of the buckle plate extending out of the tail end opening of the sliding cavity, a strip-shaped opening penetrating through the outer wall of the first screw wrench on one side and capable of communicating with the sliding cavity, a clamping hook provided on the buckle plate and capable of passing through the strip-shaped opening and clamping into the first clamping hole, and a second pressing spring provided in the sliding cavity and capable of abutting against one end of the buckle plate to keep the buckle plate moving towards the opening end of the sliding cavity.

[0014] As a further aspect of the present application, the second adjusting member comprises a second rotating shaft hole penetrating through the rear shell member, a second strip-shaped slot provided on the top of the helmet shell from front to back, a second rotating shaft rotatably penetrating through the second rotating shaft hole, a second fixed rack fixed on the inner wall of one side of the second strip-shaped slot in the length direction, a second driving gear sleeved on the end of the second rotating shaft extending into the second strip-shaped slot and capable of engaging with the first fixed rack, a second clamping member fixed on the second rotating shaft and capable of moving axially with the second rotating shaft and separating from or clamping with the second driving gear, a second strip-shaped embedding slot recessed on the outer wall of the rear shell member around the second rotating shaft hole, a second screw wrench hingedly connected to the outer end of the second rotating shaft hole and capable of horizontally embedding into the second embedding slot, the second rotating shaft hole with the second driving gear being synchronously rotated by rotating the second screw wrench after the second screw wrench is stood up by being flipped up from the second embedding slot, and a third pressing spring sleeved on the second rotating shaft hole and provided between the second clamping member and the inner wall of the rear shell member.

[0015] As a further aspect of the present application, the second reset locking device comprises at least one second locking rack movably accommodated in the second slot, a plurality of second guide rails are arranged on the inner wall of the second slot away from the second fixed rack, the second locking rack is clamped on the second guide rails and can move up and down along the second slot to engage or disengage with one end of the second drive gear, a second swing plate capable of driving the second locking rack is hinged on the inner wall of the helmet shell at the bottom of the second slot, a second connecting slot is arranged on one side of the second locking rack, the bottom of the second swing plate is hinged with the second connecting slot through the second hinge arm extending out, a second displacement slot is arranged on the second swing plate along the length direction of the second slot, the end of the second rotating shaft pointing downward points to the second displacement slot, and a second extension rod capable of passing through the second displacement slot is connected at the end of the second rotating shaft, a second sliding groove parallel to the second displacement slot is arranged on the side wall of the second swing plate, a second rotating ring is rotatably sleeved on the second extension rod, a second abutting rod in the shape of "L" is connected to the circumferential outer wall of the second rotating ring, one end of the second abutting rod is inserted into the second sliding groove and can move along the second sliding groove, and a second torsional spring is sleeved on the rotating shaft of the second swing plate and can keep the second swing plate turning against the second drive gear.

[0016] As a preferred aspect of the present application, a second clamping hole is arranged in the second embedding slot, and a second elastic clamping device capable of being clamped into the second clamping hole after the second rotating wrench is turned and embedded into the second embedding slot is arranged on the second rotating wrench.

[0017] The present application has the following advantages over the prior art: the present application divides the forehead part of the helmet shell into two parts by opening a rear shell groove extending from the top to the bottom of the rear of the helmet shell. A rear shell part is installed in the rear shell groove, and the left and right sides of the rear shell part near the bottom extend outward to connect with the inner walls of the left and right sides of the helmet shell, and expansion sliding grooves and guide blocks are arranged at the positions where the connecting wings of the rear shell part connect with the helmet shell. Meanwhile, a first rotatable shaft is arranged on the left and right sides of the helmet shell near the bottom, and a detachable first drive gear is arranged on the first rotatable shaft. A first rotating wrench is hinged to the outer end of the first rotatable shaft to drive the first fixed rack on the connecting wing to move, so as to adjust the displacement between the helmet shell and the bottom of the rear shell part. The top of the rear shell part extends to the top of the helmet shell, and the same adjustment scheme as the left and right sides is arranged at the position where the top of the rear shell part connects with the top of the helmet shell. When the wearer needs to adjust the size of the helmet, the first rotating wrenches can be turned by both hands to control the forward and backward movement of the connecting wings relative to the left and right sides of the helmet shell. Meanwhile, the second rotating wrench on the top of the head can be turned by one hand to control the forward and backward movement of the top of the rear shell part relative to the helmet shell. This design makes the forward and backward movement adjustment between the rear shell part and the helmet shell more convenient. During the adjustment process, the expansion sliding grooves and the guide blocks on the helmet shell can elastically deform to cooperate with the rotating wrenches to make the all-around wearing space adjustment more comfortable. This design can better fit the head shapes of different players and provide more personalized wearing effect. In addition, a slot is arranged corresponding to the position of the first rotating wrench to accommodate the part of the first rotating wrench. Meanwhile, another slot is designed on the top of the rear shell part of the helmet to accommodate the second rotating wrench. This design makes the size adjustment of the helmet more convenient and more suitable for individual needs. The first and second reset locking devices inside the helmet ensure that the helmet can be firmly locked in the desired position after size adjustment, and even the wearer with less strength can easily adjust the wearing space size to their own needs. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the present application.

[0019] Figure 2 is another perspective view of the present application.

[0020] Figure 3 is a perspective view of the present application.

[0021] Figure 4 is a perspective view of the present application, and an enlarged view of a local area in the figure.

[0022] Figure 5 is a cross-sectional view of the present application.

[0023] Fig. 6 is a cross-sectional view of the present application, and an enlarged view of a local area in the figure.

[0024] Fig. 7 is an enlarged view of A in Fig. 5.

[0025] Fig. 8 is a schematic view of the state when the first screw wrench is turned up and stands, and the first rotating shaft is pulled to turn over the first swing plate.

[0026] Fig. 9 is a schematic view of the state when the first driving gear engages the first fixed rack, and the first swing plate is not pulled to turn over.

[0027] Fig. 10 is an exploded view of the present application.

[0028] Fig. 11 is a schematic view of the initial state of the first adjusting member and the initial state of the first reset locking device.

[0029] Fig. 12 is a schematic view of the state when the first adjusting member is adjusted, the first rotating shaft is pulled to make the first clamping member disengage from the first driving gear, and the first swing plate is pulled to turn over, and then the first locking rack is driven to displace and engage the bottom end of the first driving gear.

[0030] Fig. 13 is an exploded schematic view of the main part of the first adjusting member in the present application.

[0031] Fig. 14 is a schematic view of the three-dimensional structure of the first swing plate in the present application.

[0032] Fig. 15 is a schematic view of the three-dimensional structure of the first locking rack in the present application.

[0033] Explanation of reference signs: 1, helmet shell; 2, rear shell piece; 3, first adjusting piece; 4, second adjusting piece; 5, first reset locking device; 6, first elastic buckle device; 7, second reset locking device; 8, second elastic buckle device; 11, rear shell groove; 12, guide block; 21, connecting wing; 22, expansion sliding groove; 23, fit piece; 31, first bar-shaped groove; 32, first rotating shaft hole; 33, first rotating shaft; 34, first fixed rack; 35, first driving gear; 36, first clamping piece; 37, first embedding groove; 38, first rotating wrench; 39, first top pressing spring; 41, second rotating shaft hole; 42, second bar-shaped groove; 43, second rotating shaft; 44, second fixed rack; 45, second driving gear; 46, second clamping piece; 47, second embedding groove; 48, second rotating wrench; 49, third top pressing spring; 51, first locking rack; 52, first guide rail; 53, first swing plate; 54, first connecting groove; 55, first hinged arm; 56, first accommodation groove; 57, first extension rod; 58, pulling piece; 59, first torsional spring; 61, bar-shaped port; 62, clamping plate; 63, clamping hook; 71, second locking rack; 72, second guide rail; 73, second swing plate; 74, second connecting groove; 75, second hinged arm; 76, second accommodation groove; 77, second extension rod; 78, second rotating ring; 79, second torsional spring; 351, connecting ring; 352, clamping groove; 361, clamping ring; 362, clamping tooth; 371, first clamping hole; 471, second clamping hole; 531, first sliding groove; 581, first rotating ring; 582, first abutting rod; 731, second sliding groove; 781, second abutting rod. DETAILED DESCRIPTION

[0034] The following detailed description provides for a variety of different embodiments or examples for implementing the present application. Of course, these are merely examples and are not intended to be limiting. Additionally, like reference numerals can be used throughout the different illustrative embodiments to indicate like elements, which is for illustrative purposes only and is not intended to limit the scope of the application to the described or illustrated embodiments.

[0035] Moreover, words used in the description of the preferred embodiments are used generically and not to be construed as strictly restrictive. The use of space-related terms, such as "above," "below," "top," "bottom," and the like, are used for the convenience of the reader and are not intended to be limiting in nature. The device can be rotated 90 degrees or other orientations in use or operation, and the spatially relative terms are intended to encompass such variations in orientation. The terms "first," "second," and the like, do not denote any absolute sequence or order, but are used for description purposes only. Thus, a device or structure described as being "first" can also be "second," and vice versa. The terms "first" and "second" are used to distinguish between two or more elements or structures, and are not intended to indicate or imply relative importance or a number of the indicated technical features. Thus, features defined with "first" and "second" can include one or more such features, either explicitly or implicitly.

[0036] A multi-directional synchronous adjustment ice hockey helmet is described below in connection with the accompanying drawings and specific embodiments: As shown in Figures 1-15, a multi-directional synchronous adjustment ice hockey helmet includes a helmet shell 1, an energy-absorbing composite material lining provided in the helmet shell 1, a rear shell groove 11 extending from the top of the helmet shell 1 rearward and penetrating to the bottom of the helmet shell 1, the rear shell groove 11 being a strip-shaped rectangle that divides the entire helmet shell 1 into two parts, a rear shell piece 2 movably provided in the rear shell groove 11 and capable of moving forward and backward relative to the helmet shell 1, the top of the rear shell piece 2 extending to the top of the helmet shell 1, and a left and right side of the top of the rear shell piece 2 extending out a fitting piece 23 that slidably fits the inner wall of the top of the helmet shell 1. A connecting wing 21 extends obliquely to the left and right sides of the bottom of the rear shell piece 2, the outer surface of the connecting wing 21 slidably fitting the inner wall of the left and right sides of the helmet shell 1, an expansion slide groove 22 provided on the outer wall of the connecting wing 21, and a guide block 12 provided on the left and right sides of the helmet shell 1 and slidably embedded in the expansion slide groove 22. When the rear shell piece 2 moves backward relative to the helmet shell 1, the left and right sides of the helmet shell 1 are expanded because the two connecting wings 21 are obliquely arranged to the left and right sides, the length of the inside of the helmet is expanded, the width of the left and right sides is simultaneously expanded, different head sizes are accommodated, and pressure on the head from the left and right sides of the helmet is prevented. In order to make the operation of adjusting the helmet easier and more accurate, a first adjustment piece 3 is provided on the helmet shell 1 corresponding to the connecting wing 21 and capable of controlling the connecting wing 21 to move forward and backward relative to the helmet shell 1 by rotating, a second adjustment piece 4 is provided on the top of the helmet shell 1 and capable of controlling the top of the rear shell piece 2 to move forward and backward relative to the helmet shell 1 by rotating, that is, the wearer can control the connecting wing 21 to move forward and backward relative to the left and right sides of the helmet shell 1 by rotating the first adjustment piece 3 with both hands, and the wearer can control the top of the rear shell piece 2 to move forward and backward relative to the helmet shell 1 by rotating the second adjustment piece 4 with one hand. After the first adjustment piece 3 and the second adjustment piece 4 are completely adjusted, the movement adjustment operation between the rear shell piece 2 and the helmet shell 1 is completed, the expansion slide groove 22 and the guide block 12 on the helmet shell 1 are elastically deformed by being pressed, and the overall wearing space adjustment is more easily achieved, so that the helmet can better fit the head shape of different players.Specifically, the first adjusting member 3 includes a first slot 31 transversely penetrating through the two connecting wings 21 respectively, a first rotating shaft hole 32 penetrating through the helmet shell 1 at the position corresponding to the first slot 31 respectively, a first rotating shaft 33 rotatably arranged in the first rotating shaft hole 32 respectively, a first fixed rack 34 arranged along the length direction of the top of the first slot 31 respectively, a first driving gear 35 movably sleeved on the end of the first rotating shaft 33 extending into the first slot 31 and capable of engaging with the corresponding first fixed rack 34 above, a first embedding slot 37 recessed on the outer wall of the helmet shell 1 and in the shape of a strip, and a first rotating wrench 38 hingedly connected to the outer end of the first rotating shaft 33 and capable of being embedded into the first embedding slot 37 after being flipped. The first rotating wrench 38 is flipped up from the first embedding slot 37, and the first rotating wrench 38 is rotated to drive the first rotating shaft 33 and the first driving gear 35 to rotate synchronously. When the user flips the first rotating wrench 38 upright, the first rotating wrench 38 is rotated to drive the first rotating shaft 33 and the first driving gear 35 to rotate, and then the first fixed rack 34 is driven to displace. At this time, the displacement adjustment of the bottom of the rear shell 2 can be realized. After the adjustment is completed, the first rotating wrench 38 needs to be buckled into the first embedding slot 37 again to limit the rotation of the first rotating shaft 33. However, after each adjustment, the angle of the first rotating wrench 38 cannot be aligned with the first embedding slot 37 for embedding. Therefore, the first rotating shaft 33 and the first driving gear 35 need to be separated, and the first rotating shaft 33 is freely rotated to ensure that the first rotating wrench 38 is rotated to the required angle and buckled into the first embedding slot 37 again. Therefore, the first clamping member 36 capable of moving axially with the first rotating shaft 33 and then separating or clamping together with the first driving gear 35 is fixed on the first rotating shaft 33. The first pressing spring 39 is sleeved on the first rotating shaft 33 between the first clamping member 36 and the inner wall of the helmet shell 1. In this embodiment, the specific structure of the combination of the first clamping member 36 and the first driving gear 35 is that the connecting ring 351 is connected to the side wall surface of the first driving gear 35 facing the inner wall of the helmet shell 1. The first clamping member 36 includes the clamping ring 361 fixed around the circumferential outer wall of the first rotating shaft 33. The clamping groove 352 penetrating through the circumference of the connecting ring 351 has the same number of teeth as the first driving gear 35. The plurality of clamping teeth 362 capable of being inserted into the clamping groove 352 are arranged around the circumference of the first rotating shaft 33 on the side wall surface of the clamping ring 361 facing the connecting ring 351. When the first rotating shaft 33 moves outward along its own axial direction, the clamping teeth 362 on the clamping ring 361 move synchronously with the first rotating shaft 33, and the clamping teeth 362 are separated from the clamping groove 352 on the clamping ring 361.At this time, only the first driving gear 35 is engaged with the first fixed rack 34, and the first rotating shaft 33 is free to rotate after losing the connection with the first driving gear 35, and will not drive the first driving gear 35 to rotate again. However, it should be noted that when the first driving gear 35 is disconnected from the first rotating shaft 33, the first driving gear 35 loses the constraint, and the helmet shell 1 itself has a certain elasticity, and the extrusion and rebound force between the expansion sliding groove 22 and the guide block 12 is added. In this case, the first driving gear 35 will rotate in the opposite direction, causing the previously adjusted position to recover. Therefore, after the first rotating shaft 33 is disconnected from the first driving gear 35, the first driving gear 35 needs to be locked to prevent it from rotating again. Therefore, the first reset locking device 5 is arranged on each of the two connecting wings 21.

[0037] As shown in FIGS. 2-15, the first reset locking device 5 in the present embodiment includes two first locking racks 51 movably arranged in the first slot 31 side by side, a plurality of first guide rails 52 are arranged on the inner wall of the bottom of the first slot 31, the first locking rack 51 is clamped on the first guide rail 52 and can move along the width direction of the first slot 31 to engage or disengage with the bottom end of the first drive gear 35, a first swing plate 53 capable of driving the first locking rack 51 to move is hinged to the inner wall of the connecting wing 21 above the first slot 31, a first connecting slot 54 is arranged on one side of the first locking rack 51, the bottom of the first swing plate 53 is hinged to the first connecting slot 54 through a first hinged arm 55 extending transversely, a first displacement slot 56 extends through the first swing plate 53 along the length direction of the first slot 31, the end of the first rotating shaft 33 pointing to the inner side points to the first displacement slot 56, and a first extension rod 57 capable of penetrating the first displacement slot 56 is connected to the end of the first rotating shaft 33, a pulling member 58 is rotatably sleeved on the first extension rod 57, one end of the pulling member 58 movably abuts against the inner wall of the first swing plate 53, specifically, a first sliding groove 531 parallel to the first displacement slot 56 is arranged on the inner wall of the first swing plate 53, the pulling member 58 includes a first rotating ring 581 rotatably sleeved on the first extension rod 57, a first abutting rod 582 in the shape of “L” is connected to the circumferential outer wall of the first rotating ring 581, one end of the first abutting rod 582 is inserted into the first sliding groove 531 and can move along the first sliding groove 531, one end of the first abutting rod 582 inserted into the first sliding groove 531 can prevent the first rotating ring 581 from rotating synchronously with the first rotating shaft 33, so that the end of the first abutting rod 582 cannot correctly push the first swing plate 53 to flip. A first torsional spring 59 is sleeved on the rotating shaft of the first swing plate 53 and can keep the first swing plate 53 against the force of flipping in the opposite direction of the first drive gear 35. As described above, after adjusting the positions of the left and right connecting wings 21, the first rotating wrench 38 needs to be rotated back to the angle just aligned with the first embedding slot 37 and embedded in the first embedding slot 37.The user wearing the helmet needs to pull the first screw wrench 38 first to drive the first rotating shaft 33 to displace outward, the clamping teeth 362 is separated from the clamping groove 352 on the clamping ring 361, at the same time, the first abutting rod 582 will displace outward synchronously with the first rotating shaft 33, the first swing plate 53 is pressed to the inner wall of the helmet shell 1 and is turned over, at the same time, the first swing plate 53 turns over, the first hinged arm 55 pushes the first locking rack 51 to move to the direction of the first drive gear 35, and finally engages with the first drive gear 35, because the upper and lower ends of the first drive gear 35 are engaged with the first locking rack 51 and the first fixed rack 34 respectively, therefore, the first drive gear 35 will not turn over. The first screw wrench 38 can also be rotated back to the angle that can be embedded in the first embedding slot 37. When the first screw wrench 38 is turned to the required angle, the first screw wrench 38 is turned over and embedded in the first embedding slot 37, at this time, the first rotating shaft 33 will displace reversely to the first screw wrench 38 again due to the action force of the first pressing spring 39, the clamping teeth 362 is inserted into the clamping groove 352 on the clamping ring 361 again, the first drive gear 35 is constrained again. And the first swing plate 53 is reset by the action force of the first torsion spring 59, the first locking rack 51 is pulled away from the first drive gear 35. To facilitate the next adjustment operation. In order to prevent the first screw wrench 38 from being thrown out or being opened again by external force after being embedded in the first embedding slot 37, a first clamping hole 371 is arranged in the first embedding slot 37, and a first elastic clamping device 6 is arranged on the first screw wrench 38, which can be clamped into the first clamping hole 371 after the first screw wrench 38 is turned over and embedded in the first embedding slot 37.

[0038] In the embodiment, the first elastic clamping device 6 includes a sliding cavity (not shown in the figure) arranged in the first screw wrench 38, one end of the sliding cavity penetrates the tail end of the first screw wrench 38, a clamping plate 62 is movably inserted in the sliding cavity, one end of the clamping plate 62 extends out of the tail end opening of the sliding cavity, a strip-shaped opening 61 is arranged on one side of the outer wall of the first screw wrench 38, which can be connected with the sliding cavity, a clamping hook 63 is arranged on the clamping plate 62, which can pass through the strip-shaped opening 61 and be clamped into the first clamping hole 371, and a second pressing spring (not shown in the figure) is arranged in the sliding cavity, which can abut against one end of the clamping plate 62 and keep the clamping plate 62 moving towards the tail end opening of the sliding cavity. The clamping hook 63 clamped into the first clamping hole 371 can effectively prevent the first screw wrench 38 from being turned up by mistake.

[0039] In addition, as shown in Figs. 1 to 6, the second adjusting member 4 is substantially similar to the first adjusting member 3, and only differs in the positions of some components. The second adjusting member 4 comprises a second rotating shaft hole 41 penetrating the rear shell member 2, a second strip-shaped slot 42 provided on the top of the helmet shell 1 from front to back, a second rotating shaft 43 rotatably penetrating the second rotating shaft hole 41, a second fixed rack 44 fixed on the inner wall of one side of the second strip-shaped slot 42 along the length direction, a second driving gear 45 sleeved on the end of the second rotating shaft 43 extending into the second strip-shaped slot 42 and capable of engaging with the second fixed rack 44, a second clamping member 46 fixed on the second rotating shaft 43 and capable of moving axially along the second rotating shaft 43 and then separating from or clamping with the second driving gear 45, a second strip-shaped embedding slot 47 recessed on the outer wall of the rear shell member 2 around the second rotating shaft hole 41, a second rotating wrench 48 hingedly connected to the outer end of the second rotating shaft hole 41 and capable of being embedded horizontally into the second embedding slot 47, the second rotating wrench 48 being capable of driving the second rotating shaft hole 41 and the second driving gear 45 to rotate synchronously by being turned up from the second embedding slot 47 and then being rotated, a third pressing spring 49 sleeved on the second rotating shaft hole 41 and provided between the second clamping member 46 and the inner wall of the rear shell member 2, and a second reset locking device 7 provided on the inner wall of the helmet shell 1 on one side of the second strip-shaped slot 42 and capable of allowing the second rotating wrench 48 to be embedded into the second embedding slot 47 again after being rotated.The second reset locking device 7 comprises at least one second locking rack 71 movably arranged in the second slot 42, a plurality of second guide rails 72 arranged on the inner wall of the second slot 42 away from the second fixed rack 44, the second locking rack 71 is clamped on the second guide rail 72 and can move up and down along the second slot 42, and then engages or separates with one end of the second drive gear 45, a second swing plate 73 capable of driving the second locking rack 71 is hinged on the inner wall of the helmet shell 1 at the bottom of the second slot 42, a second connecting groove 74 is arranged on one side of the second locking rack 71, the bottom of the second swing plate 73 is hinged with the second connecting groove 74 through the second hinge arm 75 extending outwards, a second displacement slot 76 is arranged on the second swing plate 73 along the length direction of the second slot 42, the end of the second rotating shaft 43 pointing downwards is directed to the second displacement slot 76, and the second extending rod 77 capable of penetrating through the second displacement slot 76 is connected at the end of the second rotating shaft 43, a second sliding groove 731 parallel to the second displacement slot 76 is arranged on the side wall of the second swing plate 73, the second rotating ring 78 is rotatably sleeved on the second extending rod 77, the second rotating ring 78 is connected with the second abutting rod 781 in the shape of "L" on the circumferential outer wall, one end of the second abutting rod 781 is inserted into the second sliding groove 731 and can move along the second sliding groove 731, the second torsional spring 79 capable of keeping the second swing plate 73 turning against the second drive gear 45 is sleeved on the rotating shaft of the second swing plate 73, the second clamping hole 471 is arranged in the second embedding slot 47, and the second elastic buckle device 8 capable of being clamped into the second clamping hole 471 after the second rotating wrench 48 is turned and embedded into the second embedding slot 47 is arranged on the second rotating wrench 48. The working principle of the second adjusting part 4 in the embodiment is basically the same as that of the first adjusting part 3, and the specific adjusting operation mode can be referred to the adjusting operation mode of the first adjusting part 3, and the working principle and operation mode of the second reset locking device 7 and the second elastic buckle device 8 are the same as those of the first reset locking device 5 and the first elastic buckle device 6 in the first adjusting part 3, which will not be repeated here.

[0040] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A multidirectional synchronous adjustment ice hockey helmet comprising a helmet shell (1), characterized in that: The rear shell groove (11) is provided on the top of the helmet shell (1) and extends rearward, and the rear shell member (2) is movably arranged in the rear shell groove (11) and can move forward and backward relative to the helmet shell (1), and the connecting wings (21) are respectively arranged on the left and right sides of the rear shell member (2) near the bottom end and extend obliquely to the left and right sides, and the outer surfaces of the connecting wings (21) are movably attached to the inner walls of the left and right sides of the helmet shell (1), and the expansion sliding grooves (22) are respectively arranged on the outer walls of the connecting wings (21), and the guide blocks (12) are respectively arranged on the left and right sides of the helmet shell (1) and can be slidably embedded in the corresponding expansion sliding grooves (22), and the first adjusting members (3) are respectively arranged on the corresponding helmet shell (1) of the connecting wings (21) and can control the connecting wings (21) to move forward and backward by being attached to the helmet shell (1) through rotation, and the second adjusting member (4) is arranged on the top of the helmet shell (1) and can control the top of the rear shell member (2) to move forward and backward relative to the helmet shell (1) through rotation.

2. A multidirectional synchromesh ice hockey helmet according to claim 1, characterized in that The first adjusting member (3) comprises a first slot (31) which transversely penetrates the two connecting wings (21), a first rotating shaft hole (32) which penetrates the helmet shell (1) at the position corresponding to the first slot (31), a first rotating shaft (33) which is rotatably arranged in the first rotating shaft hole (32), a first fixed rack (34) which is arranged in the first slot (31) along the length direction of the top of the first slot (31), a first driving gear (35) which is movably arranged on the end of the first rotating shaft (33) penetrating into the first slot (31) and can engage with the corresponding first fixed rack (34) above, a first clamping member (36) which is fixedly arranged on the first rotating shaft (33) and can move axially along the first rotating shaft (33) and then be separated from or clamped together with the first driving gear (35), a first embedding groove (37) which is recessed on the outer wall of the helmet shell (1) around the first rotating shaft hole (32) and has a strip shape, a first rotating wrench (38) which is hinged to the outer end of the first rotating shaft (33) and can be embedded into the first embedding groove (37) by being flipped over, the first rotating wrench (38) can drive the first rotating shaft (33) and the first driving gear (35) to rotate synchronously by being flipped up from the first embedding groove (37) and then being rotated, a first pressing spring (39) which is sleeved on the first rotating shaft (33) and arranged between the first clamping member (36) and the inner wall of the helmet shell (1), and a first reset locking device (5) which is arranged on each of the connecting wings (21) and can make the first rotating wrench (38) rotate and then be embedded into the first embedding groove (37) again.

3. A multidirectional synchro-adjustable ice hockey helmet according to claim 2, characterized in that, The first reset locking device (5) comprises at least one first locking rack (51) movably accommodated in the first slot (31), a plurality of first guide rails (52) are arranged on the inner wall of the bottom of the first slot (31), the first locking rack (51) is clamped on the first guide rail (52) and can move along the width direction of the first slot (31) to engage or disengage with the bottom end of the first drive gear (35), a first swing plate (53) capable of driving the first locking rack (51) to move is hinged to the inner wall of the connecting wing (21) above the first slot (31), a first connecting slot (54) is arranged on one side of the first locking rack (51), the bottom of the first swing plate (53) is hinged to the first connecting slot (54) through the transversely extending first hinge arm (55), the first swing plate (53) is penetrated by a first displacement slot (56) along the length direction of the first slot (31), the end of the first rotating shaft (33) pointing to the inner side is directed to the first displacement slot (56), and a first extension rod (57) capable of penetrating the first displacement slot (56) is connected to the end of the first rotating shaft (33), a pulling member (58) is rotatably sleeved on the first extension rod (57), one end of the pulling member (58) movably abuts against the inner wall of the first swing plate (53), and a first torsional spring (59) capable of keeping the first swing plate (53) from turning to the opposite direction of the first drive gear (35) is sleeved on the rotating shaft of the first swing plate (53).

4. A multidirectional synchro-adjustable ice hockey helmet according to claim 3, characterized in that, The first drive gear (35) is connected with a connecting ring (351) on the side wall surface of the inner wall of the helmet shell (1), the first clamping member (36) comprises a clamping ring (361) fixedly sleeved on the circumferential outer wall of the first rotating shaft (33), a clamping slot (352) is penetrated through the circumference of the connecting ring (351) and has the same number of teeth as the first drive gear (35), and a plurality of clamping teeth (362) capable of being inserted into the clamping slot (352) are arranged on the side wall surface of the clamping ring (361) and around the circumference of the first rotating shaft (33).

5. A multidirectional synchro-adjustable ice hockey helmet according to claim 3, wherein, A first sliding groove (531) parallel to the first displacement slot (56) is arranged on the inner wall of the first swing plate (53), the pulling member (58) comprises a first rotating ring (581) rotatably sleeved on the first extension rod (57), an "L"-shaped first abutting rod (582) is connected to the circumferential outer wall of the first rotating ring (581), one end of the first abutting rod (582) is inserted into the first sliding groove (531) and can move along the first sliding groove (531).

6. A multidirectional synchromesh ice hockey helmet according to claim 2, characterized in that The first embedded slot (37) is provided with a first clamping hole (371), and the first elastic clamping device (6) is arranged on the first rotating wrench (38) and can be clamped into the first clamping hole (371) after the first rotating wrench (38) is turned and embedded into the first embedded slot (37).

7. A multidirectional synchro-adjustable ice hockey helmet according to claim 6, characterized in that, The first elastic buckle device (6) comprises a sliding cavity provided in the first screw wrench (38), one end of the sliding cavity penetrates the tail end of the first screw wrench (38), a buckle plate (62) is movably inserted in the sliding cavity, one end of the buckle plate (62) extends out of the tail end opening of the sliding cavity, a strip-shaped port (61) capable of communicating with the sliding cavity is provided through the outer wall of the first screw wrench (38), the buckle plate (62) is provided with a clamping hook (63) capable of passing through the strip-shaped port (61) and then clamping into the first clamping hole (371), a second pressing spring capable of abutting against one end of the buckle plate (62) and keeping the buckle plate (62) moving towards the opening end of the tail end of the sliding cavity is arranged in the sliding cavity.

8. A multidirectional synchromesh ice hockey helmet according to claim 3, characterized in that The second adjusting part (4) comprises a second rotating shaft hole (41) penetrating the rear shell part (2), a second strip-shaped groove (42) is provided from front to back on the top of the helmet shell (1), a second rotating shaft (43) is rotatably arranged in the second rotating shaft hole (41), a second fixed rack (44) is fixed on the inner wall of one side of the second strip-shaped groove (42) in the length direction, a second driving gear (45) capable of engaging with the second fixed rack (44) is arranged on the end of the second rotating shaft (43) extending into the second strip-shaped groove (42), a second clamping part (46) capable of moving axially with the second rotating shaft (43) and then being separated from or clamped together with the second driving gear (45) is fixed on the second rotating shaft (43), a second embedding groove (47) in strip shape is recessed on the outer wall of the rear shell part (2) around the second rotating shaft hole (41), a second screw wrench (48) capable of being embedded horizontally into the second embedding groove (47) is hinged to the outer end of the second rotating shaft hole (41), by turning up the second screw wrench (48) from the second embedding groove (47) and then rotating the second screw wrench (48), the second rotating shaft hole (41) with the second driving gear (45) can be driven to rotate synchronously, a third pressing spring (49) sleeved on the second rotating shaft hole (41) is arranged between the second clamping part (46) and the inner wall of the rear shell part (2), a second reset locking device (7) capable of resetting the second screw wrench (48) to be embedded into the second embedding groove (47) again after rotation is arranged on the inner wall of the helmet shell (1) on one side of the second strip-shaped groove (42).

9. A multidirectional synchro-adjustable ice hockey helmet according to claim 8, characterized in that, The second reset locking device (7) comprises at least one second locking rack (71) movably arranged in the second slot (42), a plurality of second guide rails (72) are arranged on the inner wall of the second slot (42) away from the second fixed rack (44), the second locking rack (71) is clamped on the second guide rail (72) and can move up and down along the second slot (42) to engage or separate from one end of the second drive gear (45), a second swing plate (73) capable of driving the second locking rack (71) to move is hinged to the inner wall of the helmet shell (1) at the bottom of the second slot (42), a second connecting groove (74) is arranged on one side of the second locking rack (71), the bottom of the second swing plate (73) is hinged to the second connecting groove (74) through the second hinge arm (75) extending outwards, the second swing plate (73) is provided with a second displacement slot (76) penetrating along the length direction of the second slot (42), the downward pointing end of the second rotating shaft (43) points to the second displacement slot (76), and the second extension rod (77) capable of penetrating through the second displacement slot (76) is connected to the end of the second rotating shaft (43), a second sliding groove (731) parallel to the second displacement slot (76) is arranged on the side wall of the second swing plate (73), the second rotating ring (78) is rotatably sleeved on the second extension rod (77), the second abutting rod (781) in the shape of "L" is connected to the circumferential outer wall of the second rotating ring (78), one end of the second abutting rod (781) is inserted into the second sliding groove (731) and can move along the second sliding groove (731), and the second torsional spring (79) capable of keeping the second swing plate (73) turning against the second drive gear (45) is sleeved on the rotating shaft of the second swing plate (73).

10. A multidirectional synchro-adjustable ice hockey helmet according to claim 8, characterized in that, The second embedding slot (47) is provided with a second clamping hole (471), and the second elastic buckle device (8) capable of being clamped into the second clamping hole (471) after the second rotating wrench (48) is turned and embedded into the second embedding slot (47) is arranged on the second rotating wrench (48).

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